BMW M3 and BMW M4 Forum - View Single Post - Eisenmann exhaust with custom stock midpipe

Celings · 06-13-2019, 01:16 PM

Isn't the primary cat the dp? You say it's been replaced with an x pipe? I'm confused. Did you mean primary resonator?

06-13-2019, 01:16 PM	#8
Celings Registered 2 Rep 4 Posts Drives: M4 Join Date: Jun 2019 Location: Pa iTrader: (0)	Isn't the primary cat the dp? You say it's been replaced with an x pipe? I'm confused. Did you mean primary resonator?
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